patch 9.0.0279: the tiny version has the popup menu but not 'wildmenu'

Problem:    The tiny version has the popup menu but not 'wildmenu'.
Solution:   Graduate the wildmenu feature.
diff --git a/src/evalfunc.c b/src/evalfunc.c
index a41e675..230ea0d 100644
--- a/src/evalfunc.c
+++ b/src/evalfunc.c
@@ -6261,13 +6261,7 @@
 #endif
 		},
 	{"wildignore", 1},
-	{"wildmenu",
-#ifdef FEAT_WILDMENU
-		1
-#else
-		0
-#endif
-		},
+	{"wildmenu", 1},
 	{"windows", 1},
 	{"winaltkeys",
 #ifdef FEAT_WAK
@@ -10600,10 +10594,8 @@
     static void
 f_wildmenumode(typval_T *argvars UNUSED, typval_T *rettv UNUSED)
 {
-#ifdef FEAT_WILDMENU
     if (wild_menu_showing || ((State & MODE_CMDLINE) && cmdline_pum_active()))
 	rettv->vval.v_number = 1;
-#endif
 }
 
 /*